pulsarjab Posted April 9 Share Posted April 9 I need some help tracing issues with Atwood furnace. On a recent trip, it just quit. This is a 2000 Diplomat with a four button thermostat and the furnace has a Dinosaur control card. The thermostat has been reset and seems to be working with the Duo-Therm controller as I hear a click when the thermostat is turned on Furnace. On the furnace side, there is power to the 12 volt circuit breaker and if I bypass the relay, the fan will operate properly. The controller card has an led that is not lit and the furnace will not come on. Is there a good source for diagnosing the issues? I am open for all ideas and help. Thanks for all the help I have gotten from this group over the years. Greg 2000 Diplomat Link to comment Share on other sites More sharing options...
veraken Posted April 10 Share Posted April 10 Here's the Atwood service manual. Hope it helps. Atwood Furnace Manual.pdf Link to comment Share on other sites More sharing options...
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